发明授权
- 专利标题: Through-air-dried post bonded creped fibrous web
- 专利标题(中): 通风干燥后粘合起皱纤维网
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申请号: US09000584申请日: 1997-12-30
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公开(公告)号: US06248212B1公开(公告)日: 2001-06-19
- 发明人: Ralph L. Anderson , Tom C. Saffel
- 申请人: Ralph L. Anderson , Tom C. Saffel
- 主分类号: D21H1972
- IPC分类号: D21H1972
摘要:
A web structure is formed by a process including first through-air drying the fibrous web comprising at least about 20% non-premium fiber, next applying a bonding material to the fibrous web, and next creping the fibrous web to form the web structure having a BLK/BW and CCDWT at least 85% of a wet-pressed web structure comprising 100% premium fiber. The web structure may alternatively or in addition to have a TWA and/or BLK/BW greater than the TWA and/or BLK/BW of a through-air-dried, bonded, and creped web structure comprising 100% premium fiber. The process may be repeated on the second side. The web structure may comprise a combination of hardwood, softwood, CTMP, and/or recycled fibers. The web structure may include at least about 40% recycled fibers.
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